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Finding the Fourth Proportional to 438,609.32, 605,292.66 and 266,468.68

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Solution

The fourth proportional to 438,609.32, 605,292.66 and 266,468.68 is: 367,733.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,609.32 : 605,292.66 = 266,468.68 : x
  2. Step 2: Convert to fraction form
    438,609.32/605,292.66 = 266,468.68/x
  3. Step 3: Cross multiply
    438,609.32x = 605,292.66 × 266,468.68
  4. Step 4: Simplify right side
    438,609.32x = 161,291,536,123.89
  5. Step 5: Solve for x
    x = 161,291,536,123.89/438,609.32
  6. Step 6: Final answer
    x = 367,733.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.